City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9049
Nacogdoches
County, TX
67 C
#9050 Narrows
County, VA
67 C
#9051 Navasota
County, TX
67 C
#9052 Newcastle
County, OK
67 C
#9053 Nickerson
County, KS
67 C
#9054 Phoenix
County, AZ
67 C
#9055 Pinellas Park
County, FL
67 C
#9056 Pingree Grove
County, IL
67 C
#9057 Pittsburg
County, TX
67 C
#9058 Ponce
County, PR
67 C
#9059 Port Orange
County, FL
67 C
#9060 Ramsey
County, NJ
67 C
#9061 Sebring
County, OH
67 C
#9062 Shamrock
County, TX
67 C
#9063 Shepherd
County, MI
67 C
#9064 Stilwell
County, OK
67 C
#9065 Sugar Grove
County, IL
67 C
#9066 Suquamish
County, WA
67 C
#9067 Tucson
County, AZ
67 C
#9068 Tuolumne
County, CA
67 C
#9069 Viera
County, FL
67 C
#9070 Wellington
County, FL
67 C
#9071 West Carthage
County, NY
67 C
#9072 Wickliffe
County, KY
67 C
Frequently Asked Questions
How are city water quality rankings calculated?
WaterQ city rankings are based on EPA SDWIS data across local public water systems, including contaminant detections, compliance violations, and recency-weighted score signals.
Can I compare two US cities directly?
Yes. Use the city comparison links on this page or open the Compare tool to evaluate two cities side by side on score, grade, and water system coverage.
How often does WaterQ refresh city data?
City-level metrics refresh when new EPA data is processed. Check city pages for latest score and violation context.